CN102359117B - Concrete gravity type foundation applied to ocean engineering and installation method thereof - Google Patents
Concrete gravity type foundation applied to ocean engineering and installation method thereof Download PDFInfo
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- CN102359117B CN102359117B CN 201110202865 CN201110202865A CN102359117B CN 102359117 B CN102359117 B CN 102359117B CN 201110202865 CN201110202865 CN 201110202865 CN 201110202865 A CN201110202865 A CN 201110202865A CN 102359117 B CN102359117 B CN 102359117B
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Abstract
The invention discloses a concrete gravity type foundation applied to ocean engineering and an installation method thereof. For solving the problems of high construction difficulty and high transport and installation costs of the conventional concrete gravity type foundation, the concrete gravity type foundation comprises a concrete gravity type foundation pedestal, a foundation tray and a guide pipe; and a grouting pipe is arranged in the guide pipe, and the outer wall of the guide pipe is provided with a plurality of grouting holes communicated with the grouting pipe. The concrete gravity type foundation is simple in structure and convenient to install; the requirement of natural bearing capacity can be met by adjusting the size of the foundation tray; and the installation cost can be effectively reduced by using integral hauling on the water. The concrete gravity type foundation is suitable for deep sea areas, can be used as a foundation of a wind generating set tower, a tide generating set tower or the like, and is particularly suitable for a soft soil foundation.
Description
Technical field
The present invention relates to a kind of infrastructure and mounting method thereof of ocean engineering, specifically a kind of concrete gravity type foundation and mounting method that is applicable to ocean engineering.The present invention is applicable to the larger marine site of the depth of water, can be used as the basis of tower barrel of wind generating set, tidal power generating unit tower cylinder etc., is particularly useful for soft foundation.
Background technology
The foundation structure pattern of ocean engineering mainly comprises: single-pile foundation, concrete gravity type foundation, suction type foundation, many pile foundations and floatation type basis.Offshore drilling platforms adopts many pile foundations mostly, and the coastal waters wind power generating set adopts single pile steel structure base and concrete gravity type foundation mostly.The present domestic concrete gravity type foundation pattern that generally adopts, because himself huge weight can keep the stable of works, simple in structure, good stability is widely used in the ocean engineerings such as harbour, harbour.
Corresponding, because concrete gravity type foundation pedestal weight is huge, the bearing capacity of natural soft soil foundation is difficult to meet the demands, and usually need to carry out jackstone to sea bed and process, in order to improve the supporting capacity of sea bed ground.When the depth of water is larger, the construction operations such as dredging operation, excavating foundation trench, fill block stone throwing and compaction in layers of sea bed all are difficult to carry out, huge basis weight also makes the transportation mounting cost significantly increase.
Summary of the invention
, transportation mounting cost high defective large for existing concrete gravity type foundation construction operation difficulty, the present invention aims to provide a kind of concrete gravity type foundation and mounting method thereof that is applicable to ocean engineering.This concrete gravity type foundation is simple in structure, easy for installation, and utilize basic tray area greater than the characteristics of concrete gravity type foundation pedestal area, by increasing the area of basic pallet, reduce concrete gravity type foundation to the requirement of natural soft soil foundation bearing capacity, utilize whole haul waterborne, can effectively reduce installation cost.
For achieving the above object, the technical solution used in the present invention is: the described concrete gravity type foundation that is applicable to ocean engineering, comprise the concrete gravity type foundation pedestal, and its design feature is also to comprise basic pallet and guide pipe; Described basic pallet is positioned at concrete gravity type foundation pedestal below and links to each other with the base plate of concrete gravity type foundation pedestal, and floor space that should the basis pallet is greater than the floor space of concrete gravity type foundation pedestal; Described guide pipe is contained on the concrete gravity type foundation pedestal, and this guide pipe internal placement has Grouting Pipe, and this guide pipe outer wall offers the injected hole that a plurality of and described Grouting Pipe is communicated with.
As to further improvement of the present invention:
In order to guarantee that the tower cylinder can accurately be positioned on the concrete gravity type foundation pedestal, the end face of described concrete gravity type foundation pedestal is provided with the tower jacket casing ring that is positioned at the guide pipe outside, and the root edge of this tower cylinder places in the tower jacket casing ring, and the height of described guide pipe is greater than the depth of water of infield.
In order to realize the mortar depositing construction between guide pipe and tower cylinder, in order to increase the rigidity of tower core structure thing, need to improve the hoop sealing effectiveness of tower cylinder root edge and concrete gravity type foundation pedestal end face, be provided with the sealing packing ring between described guide pipe and the tower jacket casing ring.
In order to adjust the verticality of tower cylinder, the top external diameter of described guide pipe is less than lower outer diameter.
Balance when installing in order to keep better concrete gravity type foundation to transport, described basic pallet internal placement has equilibrate counterweight and concora crush hole.
Further, the invention provides a kind of mounting method that is applicable to the concrete gravity type foundation of ocean engineering, specifically comprise the steps:
1), makes concrete gravity type foundation pedestal, guide pipe and associate member on the basic pallet of floating and anchorage at sea;
2), above-mentioned concrete gravity type foundation integral body is transported to the infield, the location, counterweight makes it keep balance;
3), water filling is sunk the concrete gravity type foundation that is comprised of concrete gravity type foundation pedestal, basic pallet and guide pipe in the basic pallet.
Wherein said associate member comprises Grouting Pipe, tower jacket casing ring, sealing packing ring etc.
Further, after concrete gravity type foundation sinks to finishing, for so that basic pallet obtains larger ballast, fill block stone throwing in the basic pallet.
Make the generally on land processing of basic pallet, the basic pallet after then will completing is transported to the marine and anchorage of offshore.
Compared with prior art, the invention has the beneficial effects as follows: the described concrete gravity type foundation that is applicable to ocean engineering utilizes basic tray area greater than concrete gravity type foundation pedestal area, be that the buoyancy of basic pallet generation is greater than the characteristics of the deadweight of concrete gravity type foundation, by increasing the area of basic pallet, reduce concrete gravity type foundation to the requirement of natural soft soil foundation bearing capacity; The buoyancy that utilizes basic pallet to produce makes concrete gravity type foundation integral body float on the water surface, reaches the purpose of whole haul waterborne, by water filling in basic pallet base integral is sunk, thereby reduces the transportation installation cost; Utilize equilibrate counterweight to regulate whole center of gravity, utilize the concora crush hole to regulate the internal pressure of unstable wake flow whirlpool body, concrete gravity type foundation is steadily sunk, the pendulum in the deduction and exemption sinking process wafts.
When the concrete gravity type foundation sinking is on the sea bed ground of inclination, utilize guide pipe top external diameter less than the characteristics of lower outer diameter, still can realize to a certain extent the vertical correction of tower cylinder.The present invention is applicable to the larger marine site of the depth of water and soft foundation, can be used as the basis of tower barrel of wind generating set, tidal power generating unit tower cylinder etc.
The invention will be further elaborated below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the lateral view of basic pallet of the present invention;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the drawing in side sectional elevation of guide pipe of the present invention.
In the drawings:
1-concrete gravity type foundation pedestal; The 2-guide pipe; The 3-Grouting Pipe;
The 4-injected hole; 5-tower jacket casing ring; 6-sealing packing ring;
7-basis pallet; The 8-counterweight; 9-concora crush hole.
The specific embodiment
Such as Fig. 1～shown in Figure 2, the first half of described concrete gravity type foundation pedestal 1 is circular platform type, and the latter half is column type, and its physical dimension should be determined according to upper load and sea bed foundation condition.The end face of concrete gravity type foundation pedestal 1 is provided with tower jacket casing ring 5 and sealing packing ring 6.The internal diameter of tower jacket casing ring 5 should be greater than the external diameter of tower cylinder (such as Wind turbine tower cylinder, trend set tower drum).When foundation immersion is on the larger sea bed ground of gradient, can be with the enlarged diameter of tower jacket casing ring 5, its diameter can calculate according to the height of the angle of inclination of sea bed ground, tower cylinder external diameter, guide pipe 2 and top and the bottom external diameter equidimension and try to achieve, thereby realizes the vertical correction of tower cylinder.Sealing packing ring 6 agrees with mutually with the packing ring of tower cylinder root edge, form the tower cylinder inboard with guide pipe 2 between hoop seal, make it to possess the condition that drains water body, in order to ensure the quality of concrete and slip casting between the gap, make tower cylinder and guide pipe 2 become integral body, improve the rigidity of tower core structure thing.
Such as Fig. 3～shown in Figure 4, basic pallet 7 connects into integral body with the bottom of concrete gravity type foundation pedestal 1, and the size of basic pallet 7 determines that by the supporting capacity of overall weight and sea bed ground the buoyancy of its generation should be able to make integral body float on the water surface.Pallet 7 inside, basis have been evenly arranged counterweight 8 and concora crush hole 9, counterweight 8 makes it keep balance in order to regulate whole center of gravity, the lower openings in concora crush hole 9 adopts airflow design, the bottom bore in this concora crush hole 9 is greater than the top bore, enough current when sinking, concrete gravity type foundation are arranged by concora crush hole 9, in order to subdue the transient pressure of body inside, wake flow whirlpool, the pendulum in the deduction and exemption sinking process wafts.
As shown in Figure 5, the top external diameter of guide pipe 2 is less than lower outer diameter and exceed the water surface, and the tower cylinder accurately is positioned in the tower jacket casing ring 5, and tower cylinder root edge and sealing packing ring 6 form the hoop sealing.Grouting Pipe 3 is evenly arranged in the inboard of guide pipe 2, and the injected hole 4 that is opened on guide pipe 2 tube walls directly is communicated with Grouting Pipe 3.When from Grouting Pipe 3 pressure injection slurries, slurries enter gap between the inboard and guide pipe 2 of tower cylinder by injected hole 4.
The above-mentioned mounting method that is applicable to the concrete gravity type foundation of ocean engineering specifically comprises the steps:
1), processing and fabricating basis pallet 7 on land, then the basic pallet 7 after will completing is transported to the offshore sea, makes concrete gravity type foundation pedestals 1, guide pipe 2, Grouting Pipe 3, tower jacket casing ring 5, sealing packing ring 6 etc. at the basic pallet 7 that swims in the marine also anchorage of offshore;
2), with the whole haul of above-mentioned concrete gravity type foundation to the infield, the location, counterweight makes it keep balance;
3), make the whole steadily sinking of the concrete gravity type foundation that is formed by concrete gravity type foundation pedestal 1, guide pipe 2, basic pallet 7 to basic pallet 7 interior water fillings;
4), to basic pallet 7 interior fill block stone throwings, to obtain larger ballast.
The content that above-described embodiment is illustrated should be understood to these embodiment and only is used for being illustrated more clearly in the present invention, limit the scope of the invention and be not used in, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Claims (8)
1. a concrete gravity type foundation that is applicable to ocean engineering comprises concrete gravity type foundation pedestal (1), it is characterized in that, also comprises basic pallet (7) and guide pipe (2); Described basic pallet (7) is positioned at concrete gravity type foundation pedestal (1) below and links to each other with the base plate of concrete gravity type foundation pedestal (1), and floor space that should basis pallet (7) is greater than the floor space of concrete gravity type foundation pedestal (1), and described guide pipe (2) is contained on the concrete gravity type foundation pedestal (1); Described guide pipe (2) internal placement has Grouting Pipe (3), and this guide pipe (2) outer wall offers the injected hole (4) that a plurality of and described Grouting Pipe (3) is communicated with.
2. the concrete gravity type foundation that is applicable to ocean engineering according to claim 1 is characterized in that, the end face of described concrete gravity type foundation pedestal (1) is provided with the tower jacket casing ring (5) that is positioned at guide pipe (2) outside.
3. the concrete gravity type foundation that is applicable to ocean engineering according to claim 2 is characterized in that, is provided with sealing packing ring (6) between described guide pipe (2) and the tower jacket casing ring (5).
4. the concrete gravity type foundation that is applicable to ocean engineering according to claim 1, it is characterized in that, described basic pallet (7) connects into integral body with the base plate of concrete gravity type foundation pedestal (1), and this basis pallet (7) internal placement has equilibrate counterweight (8) and concora crush hole (9).
5. the concrete gravity type foundation that is applicable to ocean engineering according to claim 4 is characterized in that, the bottom bore in described concora crush hole (9) is greater than the top bore.
6. the described concrete gravity type foundation that is applicable to ocean engineering one of according to claim 1 ~ 5, it is characterized in that, described guide pipe (2) connects into integral body with the end face of concrete gravity type foundation pedestal (1), the top external diameter of guide pipe (2) is less than lower outer diameter, and the height of guide pipe (2) is greater than the depth of water of infield.
7. one kind such as the described mounting method that is applicable to the concrete gravity type foundation of ocean engineering of one of claim 1 ~ 6, it is characterized in that, comprises the steps:
1), at sea basic pallet (7) floating and anchorage is upward made concrete gravity type foundation pedestal (1), guide pipe (2) and associate member;
2), the concrete gravity type foundation integral body that will be applicable to ocean engineering is transported to the infield, the location, counterweight makes it keep balance;
3), to the interior water filling of basic pallet (7) concrete gravity type foundation that is comprised of concrete gravity type foundation pedestal (1), basic pallet (7), guide pipe (2) is sunk.
8. the mounting method of the concrete gravity type foundation that is applicable to ocean engineering of stating according to claim 7 is characterized in that, after concrete gravity type foundation sinks to finishing, to the interior fill block stone throwing of basic pallet (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110202865 CN102359117B (en) | 2011-07-19 | 2011-07-19 | Concrete gravity type foundation applied to ocean engineering and installation method thereof |
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| CN 201110202865 CN102359117B (en) | 2011-07-19 | 2011-07-19 | Concrete gravity type foundation applied to ocean engineering and installation method thereof |
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| CN102359117A CN102359117A (en) | 2012-02-22 |
| CN102359117B true CN102359117B (en) | 2013-05-29 |
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| CN103174150B (en) * | 2013-03-28 | 2015-03-18 | 天津大学 | Gravity type foundation sinking device and application method thereof |
| CN104389318B (en) * | 2014-11-11 | 2017-05-17 | 熊翱 | Reinforced concrete-steel structure hybrid gravity foundation for offshore wind power and construction method thereof |
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| JP3764643B2 (en) * | 2000-10-23 | 2006-04-12 | 日立造船株式会社 | Basic structure of offshore wind turbine generator |
| NO329902B1 (en) * | 2009-06-10 | 2011-01-24 | Seatower As | Stabilizing buoyancy device |
| CN201746848U (en) * | 2010-06-24 | 2011-02-16 | 上海勘测设计研究院 | Base structure of tidal flat wind farm fan |
| CN202148535U (en) * | 2011-07-19 | 2012-02-22 | 中国水电顾问集团中南勘测设计研究院 | Concrete gravity type foundation suitable for ocean engineering |
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Owner name: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + Free format text: FORMER NAME: ZHONGNAN PROSPECTING DESIGN INST. CHINA HYDRAUELECTRIC CONSULTANT GROUP |
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Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: Company limited of Central-South survey and design research institute of electricity Jian group of China Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: Zhongnan Prospecting Design Inst. China Hydrauelectric Consultant Group |